/*
 * SonarQube Java
 * Copyright (C) 2012-2020 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.java.checks;

import org.sonar.check.Rule;
import org.sonar.java.checks.helpers.ExpressionsHelper;
import org.sonar.java.checks.methods.AbstractMethodDetection;
import org.sonar.plugins.java.api.semantic.MethodMatchers;
import org.sonar.plugins.java.api.tree.ExpressionTree;
import org.sonar.plugins.java.api.tree.MethodInvocationTree;

@Rule(key = "S3331")
public class CookieDomainCheck extends AbstractMethodDetection {

  @Override
  protected MethodMatchers getMethodInvocationMatchers() {
    return MethodMatchers.or(
      MethodMatchers.create().ofTypes("javax.servlet.http.Cookie").names("setDomain").addParametersMatcher("java.lang.String").build(),
      MethodMatchers.create().ofTypes("java.net.HttpCookie").names("setDomain").addParametersMatcher("java.lang.String").build()
    );
  }

  @Override
  protected void onMethodInvocationFound(MethodInvocationTree mit) {
    ExpressionTree arg = mit.arguments().get(0);
    String domain = ExpressionsHelper.getConstantValueAsString(arg).value();
    if (domain != null && !domain.isEmpty() && !domain.substring(1).contains(".")) {
      reportIssue(arg, "Specify at least a second-level cookie domain.");
    }
  }
}
